Improvement in steam water-elevators



,PATENT @rrrcn WILLIAM UnDoN, orv B nooKLYN, New roux.

IMPROVEMENT lN STEAM WATER-ELEVATORS.

Speciiication forming part of Letters Patent No. 133,752, dated December l0, 1372' antedated December t To all whom it may concern:

Be it known that I, WILLIAM BURDON, o the city of Brooklyn, in the county of Kings and State of New York, have invented anew and useful Improvement in Apparatus for ,i `Raising and Forcing Water by the Condensation and Pressure of Steam; andI hereby deiafterward expelled by the pressure of steam,

lwhich is subsequently condensed to form vacuums for the repetition of the operation. The

improvement consists in the combination, with such apparatus, of balanced upwardly-closing valves governing the admission of steam to its main chambers, attached pistons arranged in cylinders in the lower part of said chambers, springs applied to said pistons, pipes. extending each from thelower portion of one chamber to the upper portion of the other, and suitable condensing devices, whereby, on the filling of one chamber, its 'steam-valve is opened against the force of its spring by a pressure of steam from the other chamber,.and

on the completion of the discharge of the latter, and a slight reduction of pressure therein, its steam-valve -is closed by its spring, and vice versa. l

`The accompanying drawing represents a central vertical section of an apparatus constructed according to my invention.

A A are the main chambers of the apparatusf which may be of any suitable form, and may be arranged side by side, as represented, or in any other convenient relation to each other. Each communicates withV a suctionpipe, B, through a valve, G, and is provided near the bottom for the attachment'of a disr charge-pipe with a screw-threaded socket, I),

l furnished with a valve, E. In the central portion of the top `of each chamber there is arranged an upright valve-box, G, which is connected at the middle of its length by one of two branch pipes, F, with a pipe, H, leading from a steam-generator. In each valve-box there works a valve, I, composed of two pi stons, one above and the other below the mott'i of the pipe F, and connected by a hollow stem. These valves are opened by adofwnward movement sufficient to bring their lower pistons belowthe valve-boxes, and are closed by a contrary movement. Steam, entering the valveboxes by the branch-pipes F F while the valves are closed, exerts an upward pressure ,on the upper piston, and a downward pressure on the lower one, so that the valves are balanced when closed. Each valve has att-ached to it a rod, J, to the lower end of which is attached a piston, K, which works within a cylluder, L, that is arranged in the bottom part of the chamber, and is open at the top, with the exception ot' a slight internally-projecting rirn which retains the piston within it. Under each piston there is arranged, in its cylinder, a spiral spring, M, which, when not prevented by apressure on the top ofthe piston, forces the latter up as far as permitted by the rim on the cylinder. N N are bell-shaped or invertedcup-shaped condensing-vessels, which are arranged in the chambers A A in such position that their lower edges or mouths are about level with thebottoms of the dischargesockets D D. Under these vessels there are arranged saucer-shaped deflectors O O. I I

- are pipes which extend each from the lower portion of onechamber, A,'to the upper portion of the other, and are provided with check-v valves ff opening only toward their upper ends.y

'Io start the apparatus, the chambers A A areiirst iilled with water by any suitable means,

y and one of the steam-valves--which, for convenience, I will suppose to be the right-is then opened by suitable hand-gear, or otherwise, to admit steam to its respective chamber, which is thereby discharged through its discharge-pipe D. Besides expelling the water from the right chamber, the steam admitted to it forces a stream of water into the left one through the pipe P, the upper end of which isV within the latter, exerts a pressure on the water in the latter equal to its own pressure in the right chamber, and so forces down the left piston K, and opens the valve I attached to it, and admits steam to discharge the left chamber. At the completion ofthe discharge ofthe right chamber the Water in its condensing-vessel N iows out, andby condensing a portion ot' the steam in said chamber, elieets a sli ght reduction of pressure on the top of its piston K, and permits the springM to force it up and close its attached valve I, and thereby shut oft' the supply of steam from that charnher, into which water now ows from the left chamber through the proper pipe P, and condenses the remaining steam therein, and forms a vacuum, thereby causing the right chamber to fill byatmospheric'pressure. The steam new admitted to the left chamber discharges it, and at the same time continues to force through the proper pipe P a stream of Water into the right until the latter is full, when it continues to exert a pressure on it, and thereby forces down the right piston K, opening its attached valve, and thereby admitting steam tok the right chamber to discharge it. As soon as the left chamber completes its dis charge ,the Water in its condensing-vessel runs out, and, by condensing a portion of steam in it, effects a slight reduction ot" pressure on the top of the left piston K, and permits the spring M on its under side to raise it up and close its attached Valve, thereby shutting oft' the supply of steam from the chamber. Water now Hows into the left chamber from the right one through the proper pipe P, and perfects the Condensation of steam in the former and forms a vacuum `within it, and causes it to fill byat- Inospheric pressure While the right chamber discharges,` The yoperation continues, each chamber iilling and discharging simultaneously with the discharging and iilling of the other. i What I claim as my invention, and desire to secure by Letters Patent, is-

1, The combination, with either chamberA and its steam-inlet valve, of a cylinder, L, piston K, and spring M, arranged to operate substantially as herein described.

L2. v The combination, with an apparatus substantiaily such as described, et' the upwardly closing balanced valves I L`attached pistons K K, springs M M, pipes P P, and suitable condensing devices, the whole arranged to operate substantially as and for the purpose set forth.

WM. BURDON.. Witnesses:

Fenu Harmes, FERD, TUsoH. 

